Frederick w



(No Model.)

' F. W. HEDGELAND.

QUALIFYING BOX FOR BASS REEDS 0F ORGANS.

No. 472,998. Patented Apr. 19, 1892.

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UNITED STATES PATENT OFFICE.

FREDERICK W. HEDGELAND, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE IV. IV. KIMBALL COMPANY, OF SAME PLACE.

QUALIFYING-BOX FOR BASS-REEDS OF ORGANS.

SPECIFICATION forming part of Letters Patent No. 472,998, dated April 19, 1892,

Application filed November 2'7, 1891. Serial No. 413,319. (No model.) Y

To all whom it may concern:

Be it known that I, FREDERICK W. HEDGE- LAND, a citizen of the United States, residing in Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Qualifying-Boxes for Bass- Reeds, of which the following is a specification.

This invention is intended to improve the tones given out by the reeds employed in the bass of organs; and it consists in the improved construction of the qualifying-box containing the reeds and of the air-passage connecting the same with the bellows.

In the drawings I have shown at Figure 1 a side elevation of an organ-bellows and my improved reed-box for the bass-notes. Fig. 2 is a vertical section of the reed-box.

In the drawings, A represents one of the feeders, B the well, and C the air-reservoir, of any ordinary organ-bellows.

D represents a wind-chest or passage-opening from the well of the bellows andcharged with air therefrom. In the bottom of this passage D are located a series of valves e, controlling the admission of air to the cells E of the several reeds. These valves are operated from the pedals F by the pivoted lever f and the pitman f", as will be understood from Fig. 2. The passage or chest D acts as aresonator to the reeds. The cells E are formed in reed board or box G, which is placed in an inclined position, as shown, in order to render the'reeds quick in sounding and to avoid the preliminary buzzing commonly encountered when the reeds are placed either vertically or horizontally. The air which sounds the reeds (one of which is shown at g) issues into a surrounding box H, which I dcnominate the qualifying-box, and which is in eifect divided by the reed-board into two chambers 7L h, one forward of the reed-board and the other in the rear thereof, a connecting passage h under the lower edge of the reed-board serving to unite the two chambers. These qualifying-chambers both unite in giving the proper quality to the tone, and they also unite with the resonator-passage D in the performance of this function, so that I may very prop erly, as I believe, denominate the three as a triple-qualifying box. If the organist does not-wish to sound the bass-reeds contained in the qualifying-box, they may be prevented from sounding by closing the mute I, located at the rear of chamber h. He is enabled to do this by raising the rod J, which extends to within reach and is joined to a toggle j, attached to the end of the mute, the shortening of the toggle serving to draw the mute into the closed position. The closingof the mute prevents the passage of any air through the reeds, and thus prevents the letting out of any sound by them.

In front of the passage-box D is a re1novable board K, by taking away which ready access is had to the reeds for tuning and to the valves for repairs.

I claim- 1. The combination, with an organ, of the bass-reeds, the wind-passage D, acting also as a resonator, and qualifying-chambers h 7L,

communicating with each other, substantially as specified.

2. The combination, with blowing-bellows, of the wind-passage D, the bass-reeds, and qualifying-chambers h h, located one in front of and the other behind the reeds, substantially as set forth.

3. The combination, in an organ, of the bellows, the resonator D, the qualifying-box II, divided by the reed-board into two qualifying-chambers, and the reed-board and reeds, substantially as set forth.

4. The combination, with a wind-supply, of the bass-reeds and a qualifying-box therefor, the reed-board dividing the box into qualifying-chambers, substantially as set forth.

5. The combination, with ablowing-bcllows and the reeds, of the passage D, charged by the bellows and delivering the air to the reeds and also acting as a resonator to the latter, substantially as set forth.

6. The combination, with an organ, of wind passage or box D, a reed-board, the cells of which open from the bottom of said box, valves for closing said reed-cells, and a front board K, located relative to the valves and reed-board, as shown, and made removable, substantially as set forth.

7. The combination, with blowing-bellows, of wind-passage D, the reeds and their board, the qualifying ehamber h in front of the reeds, the qualifying-chamber h in rear of the reeds and communicating with chamber 72, and a air-exit from said box, Substantially as set mute-closing chamber h substantially asset forth. forth.

8. Thecombinatiomwithablowing-bellows, FREDERICK IIEDGELAND' 5 of the bass-reeds sounded by said bellows, a Witnesses: qualifying-box surrounding and receiving the H. M. MUNDAY, air passing the reeds, and a, mute closing the EMMA HACK. 

